Tuning explanation please
Thread Starter
Instructor
Joined: Jan 2012
Posts: 224
Likes: 3
Tuning explanation please
Thinking about doing some mods to my 427 convertible. Maybe H&C or supercharger. I see where some vendors do Chassis Dyno tuning and others do HPTuner. I'm ignorant. Is there a difference and if so which is better?
Gary
Gary
Drifting
Joined: Jul 2005
Posts: 1,635
Likes: 190
From: Austin TX
HP Tuners is the software used to do the tune. Chassis Dyno Tuning is the actual "component" for lack of better terms that your car is set up on to do the tune.
They will put the car on the dyno and get the pre-tune (benchmark) info. They will use HP Tuner to tune the software on the CPU and then re-dyno to test the tune and compare it to the benchmark to see if things are running correctly.
Generally if they use HP Tuners without the dyno, it is considered a canned tune as there will be no dyno.
This is of course a really, really simple explanation. I'm sure others will chime in with more detail if needed.
They will put the car on the dyno and get the pre-tune (benchmark) info. They will use HP Tuner to tune the software on the CPU and then re-dyno to test the tune and compare it to the benchmark to see if things are running correctly.
Generally if they use HP Tuners without the dyno, it is considered a canned tune as there will be no dyno.
This is of course a really, really simple explanation. I'm sure others will chime in with more detail if needed.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Yes, HP Tuners is the software & interface used to literally change whatever needs changing
Dyno is, well, a dyno.. they are great for getting good, steady, data at specific RPM's / loads as well as WOT readings that are pretty tough to get on the street. This is needed to figure out what to change and by how much.
Most tuners should spend some time actually driving the car on the street and collecting data. A lot of problems won't show up on the dyno but will on the street, so it's important to do both in my opinion
Dyno is, well, a dyno.. they are great for getting good, steady, data at specific RPM's / loads as well as WOT readings that are pretty tough to get on the street. This is needed to figure out what to change and by how much.
Most tuners should spend some time actually driving the car on the street and collecting data. A lot of problems won't show up on the dyno but will on the street, so it's important to do both in my opinion
Former Vendor
Joined: Oct 2006
Posts: 278
Likes: 17
From: Auburn/Dacula/Lawrenceville Georgia
We street tune EVERY car we build to ensure that in the vehicles true environment it will perform & act as it should. The Dyno is a simulated environment that doesn't exist on the street. Dyno's are great tuning tools but shouldn't be the final say in how a car is tuned.
HPTuners is just one of the many interfaces us tuners use. There's EFI Live, SCT, TunerCats, etc etc. All have their advantages & disadvantages but the all-around best would be HPT. That's why so many tuners use it.
Drifting
Joined: Feb 2014
Posts: 1,418
Likes: 267
From: Pontiac Quebec
Yes, HP Tuners is the software & interface used to literally change whatever needs changing
Dyno is, well, a dyno.. they are great for getting good, steady, data at specific RPM's / loads as well as WOT readings that are pretty tough to get on the street. This is needed to figure out what to change and by how much.
Most tuners should spend some time actually driving the car on the street and collecting data. A lot of problems won't show up on the dyno but will on the street, so it's important to do both in my opinion
Dyno is, well, a dyno.. they are great for getting good, steady, data at specific RPM's / loads as well as WOT readings that are pretty tough to get on the street. This is needed to figure out what to change and by how much.
Most tuners should spend some time actually driving the car on the street and collecting data. A lot of problems won't show up on the dyno but will on the street, so it's important to do both in my opinion
Last edited by rpmextra; Oct 29, 2015 at 10:07 PM.
